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Old 07-29-2008, 04:37 PM
"Mikkel L. Ellertson"
 
Default unable to enumerate USB device

I am getting strange messages in the logs:

hub 1-0:1.0: unable to enumerate USB device on port 5
hub 1-0:1.0: unable to enumerate USB device on port 6
hub 2-0:1.0: unable to enumerate USB device on port 4

Everything works fine, but I would like to know what causes them.
According to what I found on Google, I can safely ignore them.


Mikkel
--

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for thou art crunchy and taste good with Ketchup!

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Old 07-29-2008, 04:59 PM
Tom Horsley
 
Default unable to enumerate USB device

On Tue, 29 Jul 2008 11:37:36 -0500
"Mikkel L. Ellertson" <mikkel@infinity-ltd.com> wrote:

> Everything works fine, but I would like to know what causes them.
> According to what I found on Google, I can safely ignore them.

As near as I can tell from my googling, they are warning messages
from code that got carried away and warning about things it shouldn't
have been warning about - things that weren't errors at all. Supposedly
there is already a patch that will make them go away, but I guess
it hasn't worked its way through to the fedora kernels yet.

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Old 07-29-2008, 05:04 PM
Tim
 
Default unable to enumerate USB device

On Tue, 2008-07-29 at 11:37 -0500, Mikkel L. Ellertson wrote:
> I am getting strange messages in the logs:

Just the once, when you boot up?

> hub 1-0:1.0: unable to enumerate USB device on port 5
> hub 1-0:1.0: unable to enumerate USB device on port 6
> hub 2-0:1.0: unable to enumerate USB device on port 4
>
> Everything works fine, but I would like to know what causes them.
> According to what I found on Google, I can safely ignore them.

If it's only as you boot up, you can probably ignore them. I get the
same, and it's my computer not working out what to do with the mouse,
keyboard, & built-in trackpad, etc., as it boots. Yet they all work
fine a bit later on.

Fedora 9 seems a bit flighty with devices. They don't just get
discovered and work, it gets in a tizzy about things not working the
instant it notices them, then they work a few more moments later.

--
[tim@localhost ~]$ uname -r
2.6.25.11-97.fc9.i686

Don't send private replies to my address, the mailbox is ignored. I
read messages from the public lists.



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Old 07-29-2008, 05:35 PM
"Mikkel L. Ellertson"
 
Default unable to enumerate USB device

Tim wrote:


If it's only as you boot up, you can probably ignore them. I get the
same, and it's my computer not working out what to do with the mouse,
keyboard, & built-in trackpad, etc., as it boots. Yet they all work
fine a bit later on.

Fedora 9 seems a bit flighty with devices. They don't just get
discovered and work, it gets in a tizzy about things not working the
instant it notices them, then they work a few more moments later.

This is still an F8 machine. I get them both at bootup, and
sometimes when I plug in a new USB device.


Jul 29 12:03:20 mikkel kernel: hub 1-0:1.0: unable to enumerate USB
device on port 6
Jul 29 12:03:21 mikkel kernel: usb 4-3: new full speed USB device
using ohci_hcd and address 13
Jul 29 12:03:21 mikkel kernel: usb 4-3: configuration #1 chosen from
1 choice
Jul 29 12:03:21 mikkel kernel: usb 4-3: New USB device found,
idVendor=0830, idProduct=0050
Jul 29 12:03:21 mikkel kernel: usb 4-3: New USB device strings:
Mfr=1, Product=2, SerialNumber=

Jul 29 12:03:21 mikkel kernel: usb 4-3: Product: Palm Handheld
Jul 29 12:03:21 mikkel kernel: usb 4-3: Manufacturer: Palm, Inc.
Jul 29 12:03:21 mikkel kernel: usb 4-3: SerialNumber: PalmSN12345678
Jul 29 12:04:33 mikkel kernel: usb 4-3: USB disconnect, address 13

Taking a deeper look at things, I noticed that hub 1 is a version
2.0 hub, and hub 4 is a version 1.10 hub. These are both internal
hubs, so I wounder if they are using the same socket? Could it be
that the high speed hub (v2.0) tries to talk to the device, and when
it can not, it hands it off to the full speed hub (v1.10)?


Mikkel
--

Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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Old 07-30-2008, 03:18 AM
Tim
 
Default unable to enumerate USB device

On Tue, 2008-07-29 at 12:35 -0500, Mikkel L. Ellertson wrote:
> This is still an F8 machine. I get them both at bootup, and
> sometimes when I plug in a new USB device.

I haven't tried 8, I skipped from 7 to 9.

> Jul 29 12:03:20 mikkel kernel: hub 1-0:1.0: unable to enumerate USB device on port 6
> Jul 29 12:03:21 mikkel kernel: usb 4-3: new full speed USB device using ohci_hcd and address 13
> Jul 29 12:03:21 mikkel kernel: usb 4-3: configuration #1 chosen from 1 choice
> Jul 29 12:03:21 mikkel kernel: usb 4-3: New USB device found, idVendor=0830, idProduct=0050
> Jul 29 12:03:21 mikkel kernel: usb 4-3: New USB device strings: Mfr=1, Product=2, SerialNumber=
> Jul 29 12:03:21 mikkel kernel: usb 4-3: Product: Palm Handheld
> Jul 29 12:03:21 mikkel kernel: usb 4-3: Manufacturer: Palm, Inc.
> Jul 29 12:03:21 mikkel kernel: usb 4-3: SerialNumber: PalmSN12345678
> Jul 29 12:04:33 mikkel kernel: usb 4-3: USB disconnect, address 13
>
> Taking a deeper look at things, I noticed that hub 1 is a version
> 2.0 hub, and hub 4 is a version 1.10 hub. These are both internal
> hubs, so I wounder if they are using the same socket? Could it be
> that the high speed hub (v2.0) tries to talk to the device, and when
> it can not, it hands it off to the full speed hub (v1.10)?

USB starts off with version 1, at the slowest speed (the lowest common
denominator), then sees if it can shift up speeds and to using version
2. This appears as the host device changing from 1 to 2, not just the
thing plugged into it.

--
[tim@localhost ~]$ uname -r
2.6.25.11-97.fc9.i686

Don't send private replies to my address, the mailbox is ignored. I
read messages from the public lists.



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Old 01-14-2009, 11:18 PM
jack wallen
 
Default unable to enumerate USB device

After an update (fedora 10) none of my USB devices are recognized. This
is what i get from dmesg:

Jan 14 17:17:13 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 20
Jan 14 17:17:13 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 21
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:15 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 22
Jan 14 17:17:15 localhost kernel: usb 1-7: device not accepting address
22, error -62
Jan 14 17:17:15 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 23
Jan 14 17:17:16 localhost kernel: usb 1-7: device not accepting address
23, error -62
Jan 14 17:17:16 localhost kernel: hub 1-0:1.0: unable to enumerate USB
device on port 7

I have googled the issue but am only finding instances where this causes
issue with booting but not an inability to mount usb devices.

Can anyone shed any light on this issue?

Thank you.

jack

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Old 01-15-2009, 06:47 PM
Robin Laing
 
Default unable to enumerate USB device

jack wallen wrote:

After an update (fedora 10) none of my USB devices are recognized. This
is what i get from dmesg:

Jan 14 17:17:13 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 20
Jan 14 17:17:13 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 21
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:15 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 22
Jan 14 17:17:15 localhost kernel: usb 1-7: device not accepting address
22, error -62
Jan 14 17:17:15 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 23
Jan 14 17:17:16 localhost kernel: usb 1-7: device not accepting address
23, error -62
Jan 14 17:17:16 localhost kernel: hub 1-0:1.0: unable to enumerate USB
device on port 7

I have googled the issue but am only finding instances where this causes
issue with booting but not an inability to mount usb devices.


Can anyone shed any light on this issue?

Thank you.

jack



Have you tried to plug directly into the computer? Front and back
connectors?


I have a few devices that don't want to work through a hub. Just
something to test.



--
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Old 01-16-2009, 02:14 PM
Jim
 
Default unable to enumerate USB device

Robin Laing wrote:

jack wallen wrote:

After an update (fedora 10) none of my USB devices are recognized. This
is what i get from dmesg:

Jan 14 17:17:13 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 20
Jan 14 17:17:13 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 21
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:14 localhost kernel: usb 1-7: device descriptor read/64,
error -62
Jan 14 17:17:15 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 22
Jan 14 17:17:15 localhost kernel: usb 1-7: device not accepting address
22, error -62
Jan 14 17:17:15 localhost kernel: usb 1-7: new full speed USB device
using ohci_hcd and address 23
Jan 14 17:17:16 localhost kernel: usb 1-7: device not accepting address
23, error -62
Jan 14 17:17:16 localhost kernel: hub 1-0:1.0: unable to enumerate USB
device on port 7

I have googled the issue but am only finding instances where this causes
issue with booting but not an inability to mount usb devices.
Can anyone shed any light on this issue?

Thank you.

jack



Have you tried to plug directly into the computer? Front and back
connectors?


I have a few devices that don't want to work through a hub. Just
something to test.



To get a hub to work with all devices, hubs must have their own power
source externally.
Hubs that get there power source from the computer are the ones that
give you problems, because of voltage drop across the cable to computer.


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Old 01-16-2009, 05:14 PM
Tim
 
Default unable to enumerate USB device

On Fri, 2009-01-16 at 10:14 -0500, Jim wrote:
> Hubs that get there power source from the computer are the ones that
> give you problems, because of voltage drop across the cable to
> computer.

Not just the potential of that happening, but the host mayn't be able to
supply the amount of current desired (not a voltage drop, per se, but a
supply issue - if the host was only designed to supply "so much," then
that's all it's going to give). Whereas a powered hub has its own
specifications, which may support more power.

--
[tim@localhost ~]$ uname -r
2.6.27.9-73.fc9.i686

Don't send private replies to my address, the mailbox is ignored. I
read messages from the public lists.



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Old 01-18-2009, 10:01 PM
"Mikkel L. Ellertson"
 
Default unable to enumerate USB device

Jim wrote:
> To get a hub to work with all devices, hubs must have their own power
> source externally.
> Hubs that get there power source from the computer are the ones that
> give you problems, because of voltage drop across the cable to computer.
>
Considering the amount of current we are talking about, I do not
think voltage drop is a problem. On the other hand, with a bus
powered hub, all the devices, plus the hub itself, are limited to
the max current of the port you are plugged into. A limit of
500ma/port is common, but it could be less.

Voltage drop = current x resistance
.5v = 500ma x 1 ohms.

Mikkel
--

Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

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